I'm trying to update a Text widget as I transfer files using Net::FTP. print statements to STDOUT work as expected, and write updates to the command line as each file is transferred, but $text->insert() statements seem to be queued up, and the text box updates only once when the entire process is complete.

Hash marks are also written to STDOUT as the file is transfered, but when I redirect STDOUT to the textbox using tie:
tie *STDOUT, ref $tx_output, $tx_output;
it does not update until the entire FTP process is complete.

Any ideas? I've included the subroutine which does the work, but I'm omitting the widget definitions to conserve space. 
sub transfer {
  my $ftp = Net::FTP->new("$ftp_server", Debug=> 0, Hash=> 1) 
     or die "ERROR $!\n";
  $ftp->login( "$login", "$password");
  foreach my $file ( @source_files ) {
    my @fields = split( '/', $file );
    my $dest_file = pop( @fields );
    print "Transfer: $file - $dest_file\n";
    $text->insert('end', "Transfer: $file - $dest_file\n");
    $text->see('end');
    if ( $ftp->put( "$file", "$dest_dir/$dest_file" ) ) {
      $text->insert('end', "  FILE TRANSFERRED\n");
    } else {
      $text->insert('end', "  ERROR: $!\n");
      $text->insert('end', "   SOURCE: $file\n");
      $text->insert('end', "   DEST:   $dest_dir/$dest_file\n");
    }
  }
  $ftp->quit();
}

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In reply to Update Text Widget during FTP in Perl/Tk by MoFizzle

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